Datavideo SE-500HD Instruction Manual page 12

Program Source Row
Pressing the number buttons along the PROGRAM row selects a video source for the PGM view.
BKG button: Pressing the BKG button will switch the background to the Matte background or color
bars.
BLK button: Pressing the BLK button places a black screen on the monitor.
Split Activation Button
After the PIP window is activated, pressing the Split
button will split the PROGRAM output display into two
with the program out view on the left and the PIP view
on the right.
To select the Split source, i.e. the program out view,
please see
Transition Methods
T-Bar (Manual Transition)
T-Bar is used for performing a transition manually. The
T-Bar can be either all the way up, all the way down or
anywhere in between. When the T-Bar is pushed to
halfway between the topmost position and the
bottommost position, the keyboard functions will be
disabled.
PVW and PGM views can be transitioned at your
preferred speed. To include the transition effect,
simply press the WIPE or MIX button, after which the
Transition Effect will be triggered as you move the T-
Bar.
CUT button
Pressing the Cut button performs immediate manual
switch between PVW and PGM views without any
transition effect.
AUTO button
Pressing the Auto button automatically transitions
PVW and PGM views according to the selected speed
and the configured transition effect.
Program / Preview Outputs
12
section 3.2.5.